[  835.433827][T14603] netdevsim netdevsim302 eni302np1: renamed from eth0
[  835.467401][T14606] netdevsim netdevsim603 eni603np1: renamed from eth1
[  836.090452][T14591] Could not find device with ifindex 2000 in netnsfd 11
[  836.091319][T14591] Could not find netns with fd: 2000
[  836.091758][T14591] Cannot link a netdevsim to itself
[  836.092244][T14591] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).